Heater for automobiles



Nova-.17, 1925.

J. RICHARDSON ET AL HEATER FOR AUTOMOBILES Filed Feb. 2s 1924 A/krflame/of f/tndmsan N V E N T O R 5 Hm) Attorney Patented Nov. 17, 1925.

JOSEPH RICHARDSON, OF SURREY HILLS,

AND ALBERT LANCELOT HENnERsoNKoF KENSINGTON, VICTORIA, AUSTRALIA.

HEATER Eon AUTOMOBILES.

Application filed February 26, 1924. ,Serial To-all 'wlmniit mayconcern:

' Be it known that we, JosErH RICHARDSON, a subject of the King of GreatBritain and Ireland, residing at 13 Barton Street, Sur- -rey Hills, inthe State of Victoria, in Australia, and ALBERT LANoELoT HENDERSON, asubject of the King of Great Britain and Ireland, residing at 39 OrmondStreet, Kensington, in the State of Victoria, in Australia, haveinvented certain new and useful Improvements in Heaters foi'Automobiles, of which the following is a specification.

This invention provides apparatus of that class whereby, by utilizing.an engine exhaust, water will be heated, and circulated in a radiator inan automobile, (hereinafter called a car) or the like, there being meansif desired to allow of drawing oil water for use." Our apparatus may bewholly or partly detached from the car, but ordinarily will be keptinstalled ready for use, and'the comfort of car occupants will beincreased in cold weatherwhen heat is thus provided.

In the drawings herewith Figure 1 shows in side sectional elevation ourconstruction installed in a motor car; but that construction can bevaried in minor details to suit the make of car or the like, whileretaining matter hereinafter claimed. Figures 2 to l are on an enlargedscale. Figure 2 is a partly sectional view of our apparatus detached. i

Figure3 is a plan of a casing which contains exhaust passages, one ofwhich contains a boiler.

casin In these drawings 23 is a main water tank, and 24, 24 is a heatradiator's'hown located for use as a footwarmer, through -which waterfrom the tank will circulate, the radiator being of any suitabledescription, the footwarmer shown having, however, some advantages. 1This radiator comprises a super-posed vessel 24;"- connected with an un-(lei-vessel 24 by straps 24, and a tubular neck 29 which ensures watercirculation,

arrows in Figure 2 showing the direction of exhaust, gases through flue2, and even steamflmay be generated. At other times such circulation. pv

The tank 23 is shown, by.way ofexample, attached to the motor car seatback 25, and, when desired, carries a, water gauge, not shown. It hasany suitable filling opens and. m y hav partiti n Figure 4- isasectional plan of the-said No. 695,177. I

guide water in circulation. This tank has an air vent pipe 27 the exitof which is above a receiver 28, so that if water splashes up throughthe vent 27 it will not do so objectionably. A

The tank is best located above the car floor, and abovethe vessels 2424". These parts 23, '24, 24 are connected by tubing to parts of ourapparatus at a lower location, and shown below the car floor. heatradiating Vessels may, however, be located in various convenientpositions; and the radiators have, in our preferredconstruction,supporting framing 31 which.

allows of adjustingthe radiator to change its position. These radiatorsmay be protected by wire screening 32 to prevent persons touching theirhot surfaces.

For exhaust receiving purposes we provide an elongated casing 1 ofsuitable dimensions, containing longitudinal flues- 2, 3, having at oneend a common inlet 4, and at the other end, a common outlet 5. The fiuesare separated by a partition. 15, Which when desired is heat insulating,being shown containing asbestos or the like 16. The inlet 4 is connectedto the engine ex- The haust pipe 6 (Figure 1) between the engine and thesound mufiler 7.

At opposite ends of the partition are pivoted sections 8 and 9, havingoperating means so that they will be moved simultaneously, and willclose either flue 2 or flue 8, directing the hot gases in exhaust pipe 6through the unclosed flue.

The sections 8 and 9 are heat insulating, being shown containingasbestos or the like 8, 9

The exhaust can be through each flue when a modification of heatingeffect is required, by adjusting sections 8. and 9 appropriately. Eachflue is large and straight enough to prevent the occurrence ofobjectionable back pressure of the exhaust.

Flue 2 contains a water boiler which is an elongated boiler 17 capableof withstanding severe stresses. In this boiler the hottest water willbe produced by directing the the' exhaust gases are directed by the door8 into flue 3 which ofiers negligible resistance to the exhaust; Flue 2offers greater resistance, by reason of the presence of the directedpartly exhaust contact surfaces.

boiler, but even the latter resistance is relatively slight, the backpressure aforesaid being avoided. Each door 8 and 9 is rela tively long,and extends at only a slight obliquity to the flow surfaces directingexhaust gases as aforesaid, shutting exhaust off from either flue asrequired. To allow of operating the doors they have pivotal projections10 ex-- tending outside the flue casing, where each projection carriesan arm 11, these arms being pivoted to a connecting. link 12, andcontrolled by a rod 13, extending from an extension 14 of one arm 11, tomeans by which an attendant can set the doors from time to time indesired positions. These means are shown as a lever 13*, the position ofthe same being, in practice, wherever convenience requires.

The boiler is secured in position by a strap 20, and has a drainage pipe22 and cook 21.

Our elongated boiler 17 is annular in cross section, and is set so thatit leaves a space all round its exterior for passage of exhaust, and aspace along its interior for passage of exhaust at the same time, theexterior and interior surfaces being conical, the exterior enlarging andthe interior contracting towards the rear to provide inner and outerThese exterior and interior surfaces thus diverge from one another fromthe exhaust inlet-towards its outlet. The front end of the boiler iscircular as shown at 17, and the diverging and converging exterior andinterior walls produce a wedge shape, the boiler thus offeringnegligible resistance to exhaust gases; but owing to the conicalsurfaces aforesaid the boiler is relatively thick at its rear, and hasan end 17 of substantial area, which is utilized for connection theretoof inlet and outlet water circulating pipes 18 and 19, which are spacedapart and extend to the relatively large heat radiator 243.2 1". Thesepipes are shown attached one above the other to the boiler end.

We provide one or more taps 33, for drawing off Water when desired, andthe radiator may be fitted with a thermometer.

The boiler is connected by pipe 19 to the top of the radiator, 24*,which has a vent 26 (with a cook 26), and 26 is a water overflowreceiver. This vent is necessary to allow of air escape when theapparatus is being charged with water, and it will also allow surpluswater to escape. But when the radiator is charged for use the cock 2c isclosed.

lVe provide'cocks 34. on pipes 18 and 19 for regulation of thecirculation of the water, and to stop the circulation if desired whenthe exhaust is not being utilized.

For safety purposes we find that an outlet, is desirable from one of thepipes which communicate with the boiler, and this out of exhaust, theoblique let is shown as a pipe 30 extending from pipe 18 to a suitablyhigh point, that is the top of tank 23. This pipe will not normally actas a. circulation element, but it will, when the emergency occurs,provide a passage for boiler steam, or steam and water, especially whenthe cooks 3 1 are closed. Ordinarily, however, an occupant of the carwould direct the exhaust through passage 3 before the water in theboiler became hotenough to generate steam freely; if steam were producedthe first effect would be to increase the heat in the radiator, and thenthe heat in tank 23, as heated water would rise through pipe 18. Theinsulation be tween the flues 2 and 3 retards heating of flue 2 when theexhaust gases are passing through flue 3, and thus overheating of theboiler water is guarded against.

To prevent siphonage of water from tank 23 through pipe 27, or pipe 30,we provide air holes 27" and 30 in pipes 27 and 30.

The boiler, even if dry, will withstand the heat of the exhaust.

lVe claim 1. In an automobile heating apparatus including an exhaustpipe, a boiler element, and water circulation means, the combination ofa casing adapted to allow the pas sage of exhaust gases therethrough and011- closing said boiler element, a partition in said casing, and meansfor adjusting said partition to allow desired quantities of exhaustgases to pass through and around said boiler element.

2. In an automobile heating apparatus including an exhaust pipe, aboiler element, and water circulation means, the combination ofa casingadapted to allow the passage of exhaust gases therethrough and enclosingsaid boiler element, a partition in said casing comprising one fixedsection and two swinging sections pivotally supported by opposite edgesof said fixed section, and means for adjusting said swinging sections toallow desired quantities of exhaust gases to pass through and aroundsaid boiler element.

3. A water heater for use in conjunction with the exhaust gases from anengine, comprising an annular liquid-containing chamber which istriangular'in longitudinal section with the apex of the triangle turnedtoward the oncoming gases, said chamber being adapted to allow thepassage of separate streams of exhaust gases through and around thechamber, and inlet and outlet means for the liquid in said chamber, saidmeans eonnnunicating with the wall forming the base of said triangle.

In witness whereof we have hereunto set our hands.

JOSEPH RICHARDSON. ALBERT LANCELOT H DERSON.

